IMSU Physics 2014/2015 Past Questions

Practice each question, then open it to see the full details.

Which of the following materials is a conductor?

A.plastic
B.sodium
C.gas
D.glass

The charge carriers in gases are:

A.ions only
B.electrons and holes
C.ions only
D.electrons and ions

The current in a reverse-biased junction is due to

A.Electrons
B.Majority carriers
C.Holes
D.Minority carriers

Satellite communication network make use of

A.infra-red rays
B.wave
C.visible light
D.radio wave

An electric device is rated 2000W, 250V. The correct fuse rating of the device is?

A.8A
B.9A
C.7A
D.6A

A car battery rated 45AH is charged with a charger whose rating is 2.5A how long Will it take to charge the battery fully

A.20hrs
B.10hrs
C.15 hrs
D.18hrs